Available languages
2 hours
Mobile ticket
Paddle into the glowing waters of Puerto Rico’s famous Bio-Bay.Watch the water light up with every movement.Learn about this rare natural phenomenon from expert guides.Safe and fun for all experience levels.
Public transportation options are available nearby
Not recommended for travelers with spinal injuries
Not recommended for pregnant travelers
Not recommended for travelers with poor cardiovascular health
Travelers should have at least a moderate level of physical fitness
Maximum weight limit of 450 lbs for each kayak.
Maximum weight limit of 225 lbs for each participant.
Minimum age of 6 years for participation.
Participants under 18 years old must be accompanied and paired with an adult (18+).
Life jackets and all mandatory equipment are provided.
If your group is an odd number, the single one will be riding with another single from another group.
For a full refund, cancel at least 24 hours before the scheduled departure time.
Travelers will meet us at our kisok in Fajardo to get ready for their Bio-Bay tour! You will receive a briefing on how to properly use kayaks with the oars!
We will start our tour from Bahia Fajardo where travelers will follow our guide through a mangrove channel to the Bioluminescent Bay.
Use of Kayak and Oar for duration of the tour
Guided service
Safety life jacket
Admission
Transportation service
10 reviews
Total reviews and rating from Viator & Tripadvisor
Jessica R,Mar 28, 2026
- Review from Viator
We did this trip yesterday and I have to say the bioluminescence was rather underwhelming. The photos made it look like we would see it while paddling. They had us put a giant tarp over our heads in order to see it. The kayaking was fun, but definitely need to be able to do 3 miles. Also, they said they would post pictures of everyone. The photos they posted were very blurry, my family has a good laugh at them after the long night. I would say our guides did a good job.
Justin R,Mar 23, 2026
- Review from Viator
Fantastic time and such a different experience. Guides were excellent and we had a great time. Wonderful moments and memories with my daughter.
Maria L,Mar 22, 2026
- Review from Viator
This can be a great adventure, but there are some things that would have been helpful to manage expectations. We did the 8:00 pm tour in mid March. I thought the kayaks through mangroves was a great adventure! The others in my group felt unsafe as you genuinely could not tell if you were headed straight into the hard mangroves or were going to get your eye poked. My 8 year old cried a lot. This tour company had friendly guides. This tour company also had the most notably dim lights (others kayaks were much brighter and well marked). The dim lights on our kayaks made it more challenging to keep tabs on kayaks in front of you and awareness of where sides of mangroves were. The bioluminescence was what I was most excited about for my kids to see. (Ages 17,15,13,8). It was neat and the bay itself was beautiful. But the bioluminescence didn’t look anything like the pictures. If you know that ahead of time, you can avoid disappointment. It looked like bubbles in a pool with a light on at night. Also, the tarps they use to try and make it darker were damp and sandy and did not enhance the experience. The stars the guides pointed out in bay were the best part. We enjoyed that! One more note - the directions say to wear something that could get wet. It did not specify that you are walking in waste deep water to reach the kayaks. Had I known that - I could have better prepared my youngest. It was a little spooky. Choppy ocean water at night and you start off the ride soaked from waste down. Again - not a deal breaker but could have helped manage expectations.
Erin T,Mar 19, 2026
- Review from Viator
It was a great tour. This is not for all experience levels even though it’s advertised that way. Other than that it’s a great adventure.
Raul G,Mar 5, 2026
- Review from Viator
Unfortunately your lead instructor did a terrible job keeping our party together. As you know this trip has had its challenges. He easily could have kept my daughter 16 and my wife with my boat who was put with another single rider. I’m not a complainer but I do speak up when efforts are not made to accommodate a paying customer.
Farrah F,Feb 20, 2026
- Review from Viator
The guides were great! Lots of fun. Need to be in good shape to kayak through the mangroves. Everyone throws a big tarp over their heads to really see the bioluminescence because the light pollution from Fajardo makes it hard, but we also saw some as we were kayaking back.
guliaa2021,Dec 27, 2025
- Review from Tripadvisor
The tour operators were professional and made sure everyone exercises safety. We had hard time seeing the glow but we knew it will be the case since the moon was not on our side. Still the ride back was a lot of fun and the stars were beautiful. I sort of wanted to freeze that moment. We were still able to see bioluminescence by covering ourselves with the tarp lol to create darkness around us. It’s been hilarious but an experience of its own. One note I wish they mentioned in the instructions - you will be almost to your waist in the water getting/walking to the kayak. So be prepared to get you bum wet before even getting in the kayak. And yes they weigh everyone so if you’re heavier than 225lbs you can’t go.
Elizabeth B,Dec 10, 2025
- Review from Viator
Fantastic experience but viator charges twice as much and sent us to the wrong facility with the wrong name of the company (tickets said eco adventures kayaking and it was actually puerto rico eco tour! Both companies in the same parking lot but opposite ends of the strip) and had the wrong time. So thankful that the place called us prior. We booked for 8:30, the tour started at 7:30! We were already in the area shopping and equally grateful for that as well! Don't use viator. Book through the actual company. It would've been literally half the cost...
Justin H,Nov 28, 2025
- Review from Viator
It was a fun kayak ride to the bay to see the bioluminescence in the bay. Tour guides were great. Best to see when it’s a new moon. They provide a tarp to put over your head to see it. You need to be under 225lbs to ride so start dieting now. Luckily we all made the cut. Also make sure to bring flip flops or water shoes. Kayaking experience is useful but not required as many folks were paddling into the mangroves.

BlessednBlissed,Nov 9, 2025
- Review from Tripadvisor
horrible customer service and they are very hard to work with. After booking the cruise the day of, they refused to help after they called and said that there was a weight limit and I did not see it on the website. They then proceeded to tell me that 3 of the 4 people of the group could still participate and the other could not and could either not show up or sit on the car. I should have seen that they had zero reviews and not booked with them.
Operated by san juan tours